LF353D

Overview

The LF353D is a dual-channel high-speed general-purpose JFET input operational amplifier manufactured by STMicroelectronics. It features low input offset voltage, low power consumption, and high slew rate capabilities. The device operates within a supply voltage range of ±3.5V to ±18V (single supply 7V to 36V) and supports an operating temperature range from 0°C to 70°C. Key electrical parameters include a gain-bandwidth product of 3MHz, a typical slew rate of 13V/µs, and a maximum input offset voltage of 13mV. It is housed in an 8-pin SOIC surface-mount package.

Feature Summary

• JFET input stage providing high input impedance and low bias current
• Internal frequency compensation for stability without external components
• Output short-circuit protection included
• Latch-up free operation

Applications

• High-speed integrators
• Sample-and-hold circuits
• Digital-to-analog converters

Procurement Notes

Verify the manufacturer marking on the component body matches STMicroelectronics branding. Confirm the package type is SOIC-8 and check for date codes consistent with current production cycles. Ensure the part number suffix 'D' corresponds to the standard tape-and-reel or tube packaging options available for this specific series variant.

Selection Notes

Select the LF353D when a dual-channel amplifier with JFET inputs is required for applications needing high input impedance and moderate speed. Compare against single-channel variants like the LF351 if only one amplifier is needed. Consider the LF353N for through-hole mounting requirements instead of surface mount.

Part Context

The LF353D belongs to the LF35x family of JFET input operational amplifiers produced by STMicroelectronics. This family includes single-channel (LF351), dual-channel (LF353), and quad-channel (LF347) variants sharing similar electrical characteristics and pinouts where applicable. The 'D' suffix specifically denotes the SOIC surface-mount package format.

Replacement Considerations

Compatible substitutes include the LM358D for bipolar input applications, though performance differs significantly. Other JFET input dual op-amps such as the TL072CD may serve as functional equivalents depending on specific circuit requirements.